John Koudounis

John Koudounis serves as Chief Executive Officer at Calamos Investments. Calamos Investments operates in the financial services sector with approximately 460.0 employees. The company is headquartered in Chicago, Illinois. Calamos Investments generates annual revenue of 70000000.0.

Industry & Role Insights

• • MessageCEO tracks 11,960 executives in the financial services sector.
• • We have verified contacts for 6 executives at Calamos Investments.
• • 3,772 executive contacts are available in Illinois.
• • Our database includes 201,469 c suite-level executives.

Cloudflare DNS UltraDns Sendgrid Outlook Pardot Microsoft Office 365 CloudFlare Hosting Google Font API UltiPro ClickDimensions Mobile Friendly Bootstrap Framework EPiServer ASP.NET Linkedin Marketing Solutions Google Tag Manager AI

equity convertibles fixed income alternatives long short sustainable bitcoin etfs etfs finance investment bankers/brokers/service investment funds wealth management mutual funds closed-end funds exchange-traded funds ucits funds private credit convertible securities risk management long/short strategies sustainable equities volatility management investment advisory financial planning active management growth equities institutional strategies liquid alternatives market neutral income structured protection etfs wealth planning trust services high-net-worth investments retirement planning portfolio management risk-adjusted returns financial advisors investment opportunities wealth management solutions client service tax management etf strategies capital preservation investment insights institutional investors risk mitigation client-focused approach alternative investments multi-asset strategies performance analytics global investment solutions investment trusts wealth creation long-term growth market analysis financial institutions asset allocation investment performance diversified investment firm global investment strategies sustainable investing individual investors capital protection downside protection innovative investment solutions long-term performance esg integration market neutral strategies growth equity income generation investment management asset management professional growth diversity & inclusion financial services

AK

Andy Konchan CTO at Calamos Investments

JF

Jessica Fernandez SVP - Chief Marketing Officer at Calamos Investments

TH

Thomas Herman Executive Vice President, Chief Financial Officer at Calamos Investments

DD

Dan Dufresne Chief Operating Officer at Calamos Investments

CD

Carla D'Antonio VP, Office of the Chairman and CEO at Calamos Investments

Outreach Guidance — financial services Sector

Financial services executives like John Koudounis prioritize security, compliance (SOC 2, SOX), and integration with existing systems. Reference industry-specific regulatory requirements and provide case studies from peer institutions.

John Koudounis's Position in the MessageCEO Database

• •John Koudounis is 1 of 6 verified executive contacts we track at Calamos Investments.
• •11,735 verified executive contacts in financial services are in the MessageCEO database.
• •3,510 verified executive contacts in Illinois are in the database.
• •59 verified contacts work at financial services companies in the 460.0 employee range (same size as Calamos Investments).

Executive contact data compiled from public business filings, LinkedIn public profiles, company press materials, and verified outbound email testing. We do not publish personal addresses or sensitive identifiers. Methodology & sources · Removal requests handled at /remove-info · Updated May 2026.

How do I reach John Koudounis directly?

John Koudounis's verified email address is available to MessageCEO Pro subscribers. They currently serve as Chief Executive Officer at Calamos Investments. Access direct contact info to skip gatekeepers and reach the decision maker.

What company does John Koudounis work for?

John Koudounis is Chief Executive Officer at Calamos Investments, a company in the financial services sector with 460.0 employees. The company is based in Chicago, Illinois.

Can I pitch or sell to John Koudounis?

As Chief Executive Officer at Calamos Investments, John Koudounis is a key decision-maker in the financial services sector. MessageCEO Pro gives you verified email to reach John Koudounis directly — ideal for B2B sales, partnerships, and executive recruiting.

What industry is John Koudounis in?

John Koudounis works in the financial services industry as Chief Executive Officer at Calamos Investments. MessageCEO provides verified contact information for executives across all major industries.

Is John Koudounis's contact information verified?

Yes. MessageCEO verifies executive contact information through multiple data sources and regular validation checks. John Koudounis's profile is kept up-to-date with the latest available information.

Last updated: May 31, 2026